Combination of ultrasonic extraction and stripping analysis: An effective and reliable way for the determination of Cu and Pb in lubricating oils

Talanta ◽  
2006 ◽  
Vol 68 (3) ◽  
pp. 850-856 ◽  
Author(s):  
Rodrigo A.A. Munoz ◽  
Pedro V. Oliveira ◽  
Lúcio Angnes
Keyword(s):  
Ultrasonic Extraction ◽  
Stripping Analysis ◽  
Lubricating Oils

Determination of Calcium or Zinc Additives in Lubricating Oils and Concentrates

1957 ◽  
Vol 29 (8) ◽  
pp. 1223-1223 ◽  
Author(s):  
P. B. Gerhardt ◽  
E. R. Hartmann
Keyword(s):  
Lubricating Oils

Determination of zinc in lubricating oils and lubricating oil concentrates

1968 ◽  
Vol 239 (1) ◽  
pp. 33-36 ◽  
Author(s):  
K. S. Anand ◽  
Prabhu Dayal ◽  
O. N. Anand
Keyword(s):  
Lubricating Oil ◽  
Lubricating Oils

Direct Determination of Copper in Biodiesel Using Stripping Analysis

2010 ◽  
Vol 22 (16) ◽  
pp. 1846-1850 ◽  
Author(s):  
Eduardo S. Almeida ◽  
Marina A. N. A. Monteiro ◽  
Rodrigo H. O. Montes ◽  
Rafael Mosquetta ◽  
Nívia M. M. Coelho ◽  
...  
Keyword(s):  
Direct Determination ◽  
Stripping Analysis ◽  
Determination Of Copper

A novel method for the evaluation of the contamination dispersing ability of lubricants (CONTA-DISP)

2021 ◽  
Vol 68 (3-4) ◽  
pp. 22-28
Author(s):  
Bettina Ronai ◽  
Rainer Franz ◽  
Marcella Frauscher
Keyword(s):  
Lubricating Oils ◽  
Practical Procedure ◽  
Particulate Contamination ◽  
Optimum Parameters ◽  
Analysis Methods ◽  
Lubricant Analysis ◽  
Novel Method ◽  
Dispersing Ability

Water and solid particulate contamination are the two most common contaminants of lubricated systems and may be highly problematic for these systems. To reduce downtime and prevent failure, lubricant formulations contain detergent and dispersant additives that play an important role in terms of contamination tolerance. In lack of a practical procedure for the determination of the relevant properties, a novel method for the evaluation of the dispersing ability of lubricating oils is introduced. Following and combining established lubricant analysis methods, a procedure with optimum parameters was found. An assessment of the method using fresh and artificially altered lubricating oils allowed a differentiation concerning their dispersing ability.

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